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This paper presents a discrete wavelet transform (DWT) domain watermark detection approach using Gaussian mixture model (GMM) with automated model selection. More specifically, instead of using traditional expectation maximization (EM) algorithm for parameter estimation in mixture model, where the number of model components need to be fixed in advance, the proposed approach employs the component-wise...
This paper investigate stable right inverse and stable right null space for a class of generalized linear systems via the stable fractional theory. Strong Simultaneous stabilization problem for a class of generalized linear systems is discussed in terms of stable right inverse. A design approach of the strong simultaneously stabilization controller is proposed using stable right inverse. A numerical...
A spurious-mode-suppressing method is introduced in this paper, aiming at increasing frequency interval between operating mode (TM310 mode) and spurious mode (TM020 mode). By means of CST-MWS, we find that the frequency interval can be increased 0.65 GHz in X-band by the method.
We propose a new method for analysis of the sampling and reconstruction conditions of signals by use of the weighted fractional Fourier transform (WFRFT). It is shown that the WFRFT domain may provide a novel understanding of sampling process. The proposed sampling theorem generalizes classical Shannon sampling theorem and Fourier series expansion, and provides a full-reconstruction procedure of certain...
This study explores the cause-and-effect between customer-based E-tail brand equity and web-market outcomes, and it is found that customer-based E-tail brand equity is the antecedent of web-market outcomes. Based on literature review and in-depth interviews, a research mode was developed. The model that can be used to evaluate native E-tail brand equity from both customerspsila perspective and market...
We first give a new fractionalization of discrete cosine and sine transforms of types I, IV, V and VIII. The fractional discrete cosine and sine transforms with four random parameters are defined, to which we refer as random fractional discrete cosine and sine transforms. A novel image encryption algorithm based on random fractional discrete cosine or sine transform and random phase encoding technique...
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